Paper Info
Title
Extended-State-Observer-Based Chattering Free Sliding Mode Control for Nonlinear Systems With Mismatched Disturbance.
Abstract
This paper presents a novel chattering free sliding mode control method for a class of nonlinear systems in the presence of matched disturbance and mismatched disturbance based on an extended state observer. First, a nonlinear extended state observer based on the hyperbolic tangent function is constructed to estimate the mismatched disturbance. And the second order extended state observer error system is proved to be bounded stable by using Lyapunov stability theory. Then a novel chattering free sliding mode surface integrated with the disturbance estimation is designed for this system even with mismatched disturbance. The theoretical analysis indicates that the system states can be stabilized to a neighborhood of the equilibrium point under the proposed controller. Compared with the traditional chattering free sliding mode control method, the presented control strategy can expose satisfactory control performance with chattering reduction and mismatched disturbance suppression. Finally, simulation results demonstrate the effectiveness of the proposed method.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2828868
IEEE ACCESS
Keywords
Field
DocType
Sliding mode control,mismatched disturbance,extended state observer
State observer,Control theory,Nonlinear system,Control theory,Computer science,Equilibrium point,Lyapunov stability,Steady state,Sliding mode control,Bounded function,Distributed computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
ShengLi Shi121.49
Jianxiong Li243.11
Yiming Fang3309.71